45619819 has 4 divisors (see below), whose sum is σ = 52136944. Its totient is φ = 39102696.

The previous prime is 45619811. The next prime is 45619837. The reversal of 45619819 is 91891654.

45619819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45619819 - 2³ = 45619811 is a prime.

It is a super-2 number, since 2×45619819² = 4162335771185522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45619811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3258552 + ... + 3258565.

It is an arithmetic number, because the mean of its divisors is an integer number (13034236).

Almost surely, 2^45619819 is an apocalyptic number.

45619819 is a deficient number, since it is larger than the sum of its proper divisors (6517125).

45619819 is an equidigital number, since it uses as much as digits as its factorization.

45619819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6517124.

The product of its digits is 77760, while the sum is 43.

The square root of 45619819 is about 6754.2445173387. The cubic root of 45619819 is about 357.3149488117.

The spelling of 45619819 in words is "forty-five million, six hundred nineteen thousand, eight hundred nineteen".